Answer:
Five of the plants are squash.
Ten of the plants are tomatoes
Step-by-step explanation:
There has to be twice as many tomatoes than there is squash.
If there are five squash plants, then there will be two times that many of tomato plants.
2 x 5 = 10 tomato plants
10 tomato plants + 5 Squash plants = 15 plants total